package com.wdf.project03.util;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

import java.util.Date;
import java.util.Map;

public class JwtUtils {
    private static String signKey = "wdf001"; //密钥
    private static Long expire = 43200000L; //有效时间
    public static String generateJwt(Map<String,Object> claims){
        String jwt = Jwts.builder()
                .addClaims(claims)
                .signWith(SignatureAlgorithm.HS256,signKey)
                .setExpiration(new Date(System.currentTimeMillis() + expire))
                .compact();
        return jwt;
    }
    public static Claims parseJWT(String jwt){
        Claims claims = Jwts.parser()
                .setSigningKey(signKey).parseClaimsJws(jwt).getBody();
        return claims;
    }
}
